Animal trap capture detecting system

The use of acceleration sensors on animal traps with low-power communication enhances energy efficiency and reduces maintenance effort in remote trap monitoring.

JP2025008269APending Publication Date: 2025-01-20田中泉
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Patent Information

Application Number
JP2023110274
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-07-04
Publication Date
2025-01-20

AI Technical Summary

Technical Problem

Existing animal trap detection systems face challenges in energy efficiency, power consumption, and labor-intensive maintenance due to reliance on solar power and microphones/cameras, especially in remote locations with unpredictable weather and noisy environments, leading to malfunctions and high power consumption.

Method used

Utilization of two acceleration sensors mounted on the trap and wire to detect trap activation, escape, and malfunction, with a low-power sleep state and LPWA wireless communication for efficient event notification.

Benefits of technology

Improves energy savings and reduces labor by accurately detecting trap events with minimal power consumption and simplified installation, suitable for remote operation.

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Abstract

To contribute to improvement of energy saving and labor saving by providing an animal trap capture detecting system with means running on batteries for a long period of time and discriminating events such as activation of a trap, failure to capture and malfunction.SOLUTION: An acceleration sensor for converting acceleration generated by vibration into an electric signal proportional to the acceleration has been widely applied. An animal trap capture detecting system includes two acceleration sensors mounted on an animal trap to discriminate and notify of events such as activation of the trap, failure to capture and malfunction, and can run on batteries for a long period of time.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present invention relates to an animal trap detection system that detects whether a harmful animal has been captured in a trap set at a remote location. [Background technology]

[0002] Traditionally, to capture animals, multiple traps are set in remote locations several tens of kilometers apart. Since the target animal is not caught immediately after the traps are set, the traps must be checked every day. It can take more than two or three hours by car or on foot to check the status of each trap, and checking all the traps takes a great deal of time and effort. As damage to agriculture and forestry caused by wild birds and animals such as wild boars and deer becomes more serious, the decline and aging of hunters is becoming a major problem.

[0003] In recent years, systems that detect when a vermin trap is set up in a remote location have been used. One example of such a vermin trap detection system that detects when a target animal is caught in a trap is the technology shown in Patent Document 1.

[0004] In the pest trap capture detection system of Patent Document 1, multiple trap devices are installed within the habitat of the animals to be captured, and a transmitting / receiving device is installed in the approximate center area of ​​the multiple trap devices, the door is raised, and bait is placed inside the main body of the trap to attract the pest (animal). When it is detected that the pest has entered the main body of the trap to eat the bait, the door is lowered, one end of the wire is detached from the transmitting device, and the detection device built into this transmitting device detects that the pest has been captured, and the transmitting device transmits capture-related information. When the receiving device of the transmitting / receiving device receives the capture-related information, the email transmitting device wirelessly transmits an email to at least one user terminal via packet communication, stating, "Trap device number XX was activated on XX / XX / XX at XX:XX."

[0005] Incidentally, it is preferable if a trap can be used not only to confirm whether or not an animal has been caught, but also to accurately grasp various conditions, such as whether the detection device attached to the trap is properly installed, the condition of the trap (e.g., whether the door is open or closed), whether the ground around the trap has been disturbed by vermin, and the appearance of the targeted vermin.

[0006] However, in the pest trap capture detection system of Patent Document 1, a transmitter is installed on the body of the trap, and the other end of the wire connected to the transmitter is connected to the door. Therefore, even if the door is open and a pest pulls the wire to remove it, the detection device will be activated and capture-related information will be transmitted. Since this invention generates electricity from sunlight using a solar panel and charges it into a secondary battery, if there is not enough sunlight in an environment with continuous cloudy or rainy weather, the battery will not be able to charge and the device will not be able to function.

[0007] In the animal capture system C of Patent Document 2, a microphone is used to pick up sounds and detect the presence of an animal. Furthermore, in the security system B of Patent Document 2, a microphone is used to pick up sounds, detect an intruder, and activate a camera. However, even if the camera is activated to display the current state of an intruder on a display, it is necessary to install a microphone, which can easily lead to malfunctions in places where the wind is strong and noise is likely to enter, such as forests where traps are set, and the need for a microphone and camera makes the installation work difficult and the device large-scale.

[0008] In Patent Document 3, the camera and the microcomputer that analyzes the images from the camera are constantly running, so the central processing unit (CPU) is always running and consumes power. It is well known that power consumption increases, especially when the processor is performing image processing that operates under a high load. Therefore, it is easy to imagine that this would be of little practical use in a device installed in a remote location, as it would be difficult to secure a power source. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] JP 2015-122976 A [Patent Document 2] JP 2001-33551 A [Patent Document 3] Patent No. 7066248 Summary of the Invention [Problem to be solved by the invention]

[0010] The present invention provides an animal and animal trap detection system that operates for a long period of time on a battery and is capable of determining events such as trap activation, escape, and malfunction. Contribute to improving energy efficiency and labor saving. [Means for solving the problem]

[0011] It is well known that an acceleration sensor, which converts an acceleration generated by vibration into an electrical signal proportional to the acceleration, is widely used. The present invention describes the means by which a system is invented that detects and notifies users of events such as trap activation, escapes, and malfunctions by installing two acceleration sensors in an animal trap. The first acceleration sensor is attached to the footboard (A) of the trap, and the second acceleration sensor is attached to the wire (7) between the return (6) and the tip of the wire (8). The three-axis XYZ acceleration signals (21) of each acceleration sensor (20) are compared with a comparison voltage (22) in a comparator (23) to generate a three-axis XYZ digital signal (24). The three-axis digital signal (24) is ORed (25) in a logic circuit to generate a sleep release signal (26). This signal is input to a microcomputer (27) in a low-power sleep state to release the sleep state, and the trap operation status is notified via an LPWA wireless communication module (28).

[0012] If an acceleration sensor attached to the footboard of the trap detects vibration but an acceleration sensor attached to the wire does not detect vibration for a certain period of time, it is determined that an event such as an escape or malfunction has occurred despite the trap having been activated. Effect of the Invention

[0013] By implementing the present invention, it is possible to improve energy efficiency and labor saving. [Brief description of the drawings]

[0014] [Figure 1] Detection circuit diagram [Diagram 2] Schematic diagram of the snare trap structure DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS EXAMPLES

[0015] There are three types of traps commonly used to capture animals: "box traps," which are used to lure animals into a cage-like box using bait, "enclosure traps," which have no ceiling, and "snare traps," which catch animals by tying their feet when they step on the trap.

[0016] In the case of a box trap, the trap is triggered when the target animal steps on a stepping board on which bait is placed, causing the box-shaped door to close and trapping the animal. A first acceleration sensor is placed on the stepping board. Vibrations are detected when the footboard is stepped on, and a second acceleration sensor is installed in the box, which detects vibrations when the animal to be captured struggles. If the first accelerometer detects vibration and the second accelerometer detects vibration, the capture is deemed successful. A similar method can be used to detect open-top "enclosure traps." EXAMPLES

[0017] In the case of a "snare trap," the first acceleration sensor is attached to the foot of the trap, and the second acceleration sensor is attached to the wire between the return strand and the end of the wire to detect vibrations caused by the struggle of the animal to be captured. If the first accelerometer detects vibration and the second accelerometer detects vibration, the capture is deemed successful. [Explanation of symbols]

[0018] 1. Trap wire 2 Front spring guard 3. Spring 4 Rear spring guard 5 Wire stopper 6 Back 7 Wire 8 Wire Tip 9. Shackle 20 Accelerometer 21 Acceleration signal 22 Comparison voltage 23 Comparator 24 Digital Signals 25 OR logic circuit 26 Wake-up signal 27 Microcomputer 28 LPWA wireless communication module 29 Antenna A Tread B Wire guard

Claims

[Claim 1] In the animal trap detection system, a plurality of acceleration sensors are provided, and the signals of the sensors are compared to produce a digital signal; The animal trap detection system is characterized in that the low power consumption state of the microcomputer is released by the logical sum of the digital signals.

Citation Information

Patent Citations

  • Device and method for surveying animals

    JP2001033551A

  • Capture monitoring system of capture target animal

    JP2015122976A

  • Pest trap detection system

    JP7066248B1